Science

Wednesday, 22 July 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Cosmos
The observable universe is estimated to be 13.8 billion years old.
The limit of error in the calculation is 21 million years.
Fungi
There are fungi that hunt animals.
An example of such a mushroom is the oyster mushroom. If it lacks protein, it hunts for nematodes by ...
Nicotine
Nicotine was observed to fight gastrointestinal parasites.
Pygmies are said to be the most addicted to nicotine. In the Aka tribe living in central Africa, alm ...
Enceladus
The area of Enceladus is over 800.000 square kilometers.
Aurora
The particles that make up the solar wind, upon contact with the Earth's magnetic field, spiral along the lines of this field and collide near the magnetic poles with molecules of nitrogen and oxygen, etc.
They arouse them, and these, returning to the ground state, radiate energy in the form of light quanta.
Amber
Amber was used for incense.
It was used both during religious ceremonies and in hospitals because it was believed to accelerate recovery and help to concentrate.
NASA
After the retirement of the Space Shuttle in 2011, NASA began the development of the Commercial Crew Program (CCP).
It is a joint program with private corporations—SpaceX, Boeing, and the Sierra Nevada. SpaceX provid ...
Earth
There are over 7.8 billion people in the world.
It took humanity over 2 million years to reach a population of one billion. In 2011, there were 7 bi ...
Aurora
Auroras take many shapes. They can appear in the form of colored rays, streaks, ribbons, curtains, crowns, arcs, and others.
Fungi
Most fungi develop as hyphae, which are cylindrical, thread-like structures 2-10 µm in diameter and up to several centimeters long.
The hyphae branch and connect, which leads to the formation of mycelium, which is an interconnected ...